<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
		private $_id;
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	public function authenticate()
	{
		$UserModel=User::model()->findByAttributes(array('user_name'=>$this->username));
		if(!isset($UserModel))
		{
			$this->errorCode=self::ERROR_USERNAME_INVALID;
		}
		elseif($UserModel->password !== $this->password)
		{
			$this->errorCode=self::ERROR_PASSWORD_INVALID;
		}
		else
		{
			$this->_id=$UserModel->user_id;
			//$this->setState('id', $UserModel->User_id);
			$this->errorCode=self::ERROR_NONE;
		}
		return !$this->errorCode;
	}
	
 	 public function getId()
    {
        return $this->_id;
    }
}
